Finding the Fourth Proportional to 78,803.24, 108,748.24 and 42,993

Step by Step Solution

1. Step 1: Write the proportion equation
   78,803.24 : 108,748.24 = 42,993 : x
2. Step 2: Convert to fraction form
   78,803.24/108,748.24 = 42,993/x
3. Step 3: Cross multiply
   78,803.24x = 108,748.24 × 42,993
4. Step 4: Simplify right side
   78,803.24x = 4,675,413,082.32
5. Step 5: Solve for x
   x = 4,675,413,082.32/78,803.24
6. Step 6: Final answer
   x = 59,330.21